- Briefing on Commercial and Department of Defense Space System Requirements and Acquisition Practices, GAO-10-315R, January 14, 2010
- Department of Energy: Actions Needed to Develop High-Quality Cost Estimates for Construction and Environmental Cleanup Projects, GAO-10-199, January 14, 2010
- Tax Gap: Actions Needed to Address Noncompliance with S Corporation Tax Rules, GAO-10-195, December 15, 2009